This is an exceptionally clear crystal with light smokey phantoms. Two small independent bubbles jump around in their own pockets.

The entire crystal broke off some time during formation and was sprinkled with a frosting of analcime crystals. This give it the feels of a floater as there is no base or contact point anywhere on the crystal.

A large window stands out clearly in the pics.

A rare association that is mineralogically very intersting.

Chemical Composition: SiO2

Group: Oxides

Location: This specimen is from the Gobobos Mountains, Brandberg, Namibia.